Just so you know, with the Ford steps, there would be no drilling to do the mounting of them. On the back side of the rocker, you will find some large holes that are taped ove. This is where the step supports mount. A plate with bolts is pushed into these holes and the step mount support is bolted to them. This sandwiches the rocker sheet metal between the plate and support. It is a very sturdy mount and can be removed.